// Copyright (C) 2004-2007 MySQL AB
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as published by
// the Free Software Foundation
//
// There are special exceptions to the terms and conditions of the GPL 
// as it is applied to this software. View the full text of the 
// exception in file EXCEPTIONS in the directory of this software 
// distribution.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 

using System;
using System.Data;
using MySql.Data.MySqlClient;

namespace MySql.Data.Types
{
    /// <summary>
    /// Summary description for MySqlInt32.
    /// </summary>
    internal class MySqlUInt32 : MySqlValue
    {
        private uint mValue;

        public MySqlUInt32(MySqlDbType type)
            : base()
        {
            mySqlDbType = type;
        }

        internal override void Serialize(PacketWriter writer, bool binary, object value, int length)
        {
            uint v = Convert.ToUInt32(value);
            if (binary)
                writer.Write(BitConverter.GetBytes(v));
            else
                writer.WriteStringNoNull(v.ToString());
        }

        public uint Value
        {
            get { return mValue; }
            set { mValue = value; objectValue = value; }
        }

        internal override Type SystemType
        {
            get { return typeof(UInt32); }
        }

        internal override string GetMySqlTypeName()
        {
            return "INT";
        }

        internal override MySqlValue ReadValue(PacketReader reader, long length)
        {
            if (length == -1)
            {
                if (mySqlDbType == MySqlDbType.Int24)
                    Value = (uint)reader.ReadInteger(3);
                else
                    Value = (uint)reader.ReadLong(4);
            }
            else
            {
                string value = reader.ReadString(length);
                Value = UInt32.Parse(value);
            }
            return this;
        }

        internal override void Skip(PacketReader reader)
        {
            reader.Skip(4);
        }
    }
}
